Charles smith



j C. SMITHQ' 7 Apparatus for Supplying Fuel No .'22 4,2 37. Paten e e Iv v o ljlh I 2 Sheets-Sheet 2.

G, SMITH.

A'pparatusfor Supplying Fuel to "Steam- Boilers,

No. 224,237. Patented Fb. a, 1880.

Inventory (Ikarles Smzflz.

ait.

METERS PNOTO-LITHOGRAPNER, wAsmNGrqri. me

q UNITED STATES,

CHARLES SMITH, or BURNLEYNGOUNTY or LANCASTER, ENGLAND OF IGE.

ASSIGNOR TO WILLIAM WHLTTAKER, OF SAME PLACE.

APPARATUS FOR suP-Ptvme Puget-To STEAM-BOILERS- SPEGIF-IQATION formingpart of Letters Patent No. 224,237, dated February- 3, 1880.

' Application filed July 8, 1879. Patented in England, August 21, 1877.

To all whom it may concern Be it known that I,'OHARLES SMITH, ofBurnley, in the county of Lancaster, in that part of the United Kingdomcalled England} mechanic, have invented new and useful Improvements inApparatus for Supplying Fuel to Steam-Boilers and other Furnaces, whichimprovements are fully set forth in the following specification,reference being had to the accompanying drawings.

To afiord a uniform intermittent supply of fuel to the stoker or to thefurnacefrom' the feed-hopper, and direct the fuel thrown by the fans orother medium upon and over the fire,

according to this my invention, I employ a hopper or hoppers the bottomor lower partof which is in communication with a cylinder the upper andlower sides of which are provided with openings for the reception andexit of fuel. Within the cylinder is a roller, caused to rotate slowlyby gear-wheelsor other driving apparatus. The periphery of the rolleris, at intervals, recessed, forming receptacles, within which coal, asthe receptacle comes under the,

hopper, is received. The continued rotation brings the receptacle overthe exit-opening through the cylinder, by way of which the fuel passesoutto the furnace or to the mechanical stoker, and so as each recesspasses under the hopper it becomes filled with fuel,

4 to be discharged on reachingtheexit-opening.

When two-fined boiler or double furnace is to be supplid there may beone of such apparatus to each furnace or stoker, or one apparatus maysupply both furnaces or stokers. In the latter case there will be adouble incline placed immediately under the exit-opening, so that partof thefuel may pass down the incline to the right hand and part downthein-' cline to the left hand; or the receptacles may extend a portionof the length of the roller, and the receptacles on theright hand supplythe furnace or stoke'r onthe right, the receptacles to the leftsupplying the left of thefurnace or stoker. i. l

The receptacles may be of variousforms, so as to vary the dischargefro'many one receptacle.

It will be obvious that the roller, instead of being entirely inclosedwithin acylinder, would answer the same purpose if partly inclosed orembraced by a concave neck or concave bottom of the hopper.

-In connection with the improved feed-rollerof inclination being readilyadjusted by screw- 7 shaft,acco1 'ding to the speed andthrow of thefans, so that the fuel shall be diverted and directed upon and over thewhole surface of the bars, the throwing of fuel upon and over thebridge'being entirely obviated.

. Such being the nature and object of this my said invention, I willproceed to describe the same in detail; and in order that the inventionmay be fully understood, I have hereunto an= nexed two sheets ofdrawings illustrative thereof, and have marked the same with figures andletters of reference, the same letter referring to the same part in theseveral views orfigures.

Figure lis afront elevation of double-fined -boiler having my apparatusattached. Fig.2

is a side elevation of Fig. 1, partly in section. Figs. 3, 4, 5, 6, 7,8, 9, 10, and 1.1 are details drawn to an enlarged-scale.

Ais a hopper or hoppers, the bottom or lower part of which is incommunication with a cylinder, B, the under side of which is providedwith an opening, F, for the exit of fuel. Within the cylinder is aroller, 0, caused to rotate slowly by gear wheels D, D, D and D or otherdriving apparatus. The periphery of the roller is (atintervals apart)reccssed,form= ing receptacles E, within which coal (as the ceived. Thecontinued rotation bringsthe-receptacles E over exit-opening F. throughthe cylinder B, by way of which the fuel passes out to the furnace or tothe mechanical stoker,

and so as each recess E passes under the hopper A it becomes filled withfuel, to be dis charged on reaching the exit-opening F.

When a two'flued boiler or double furnace is to be supplied there may beone of such apparatus to supply both furnaces or stokers, as shown atFigs. 1 and 2. In the latter case there will be a double incline, G,placed immediately under the exit-opening F, so that part of the fuelmay pass down the incline to the right hand and part down the incline tothe left hand 5 or the receptacles may extend a portion of the length ofthe roller. (See Figs. 6 and 7.) The receptacles on the right handsupply the furnace or stoker on the right, the receptacles to the leftsupplying the left of the furnace or stoker.

The receptacles may be of various forms, so as to vary the dischargefrom any one receptacle. (See Figs. 8 and 9.)

It will be obvious that the roller, instead of being entirely inclosedwithin a cylinder, as at Figs. 3 and 4, would answer the same purpose ifpartly inclosed or embraced by a concave neck, as at Fig. 5, or concavebottom of the hopper.

In connection with the improved feed-roller above described, I employfor double -flued boilers two fuel-fans or rotary distributors, H H,partly inclosed inboxes, and speeded by means of pulleys L.

The plate or plates J, for diverting and directing the fuel thrown bythe fan or fans H, are placed within the flue and supported by a shaftor other axis or hinges, K, and such plate or plates may have a gradualrising-and-falling motion imparted by tappet or its equivalent; or theplate or plates may be stationary, the angle of inclination beingreadily adjusted by screw-shaft M, according to the speed and throw ofthe fans, so that the fuel shall be diverted and directed upon and overthe whole surface of the bars, the throwing of fuel upon and over thebridge being entirely obviated.

Having thus fully described the nature and particulars of this my saidinvention, together with the manner in which the same is to be performedor carried into practical effect, I would observe that in order to fullyexplain the application and use of my invention it has been absolutelynecessary to refer to and describe parts which are not new. I wouldtherefore have it understood that I limit and confine my claims to-- Thecombination, with asuitable hopper and a roller arranged above dischargemouth of the same, and having peripheral recesses, of one or more fansor distributors and mechanism for imparting motion thereto, and one ormore pivoted deflecting-plates made adjustable for diverting ordirecting the fuel projected by the said fans or distributors over thesurface of the bars, substantially as herein shown and described.

CHARLES SMITH. Witnesses:

J NO. WHITMORE, THos. RICHMOND.

